Create slide up picker views to give your user a nice way to make choices (for iOS)

Appcelerator Titanium "PickerView"

/**
 * @description: This is the iPhone version to create picker views on the fly  :-)
 * @author: Stephen G
 * @date:  04/11/2011
 * @screenshot: http://yfrog.com/h4vr6ep
 * 
 * @thanks to: http://cssgallery.info/making-a-combo-box-in-titanium-appcelerator-code-and-video/
 * 
 * Example of use (two different pickers using same function to create):
 * 
 * var data = [];
 * data.push(Titanium.UI.createPickerRow({ title : "Baseball", custom_item : "1" }));
 * data.push(Titanium.UI.createPickerRow({ title : "Basketball", custom_item : "2" }));
 * data.push(Titanium.UI.createPickerRow({ title : "Football", custom_item : "3" }));
 * var PickerSport = Controls.CreatePickerView(
 * 	Titanium.UI.currentWindow, 
 * 	data, 
 * 	true, 
 * 	function(row) {
 * 	      Titanium.API.info("You picked: " + row.title + "/" + row.custom_item);
 * 	}
 * );
 * 
 * PickerSport.Show();     // Shows the picker view (you call this)
 * PickerSport.Hide();		// Hides the picker view (called automatically from buttons inside the view)
 * 
 * data = [];
 * data.push(Titanium.UI.createPickerRow({ title : "Boston", custom_item : "1" }));
 * data.push(Titanium.UI.createPickerRow({ title : "New York", custom_item : "2" }));
 * data.push(Titanium.UI.createPickerRow({ title : "Miami", custom_item : "3" }));
 * var PickerLocation = Controls.CreatePickerView(
 * 	Titanium.UI.currentWindow, 
 * 	data, 
 * 	true, 
 * 	function(row) {
 * 	      Titanium.API.info("You picked: " + row.title + "/" + row.custom_item);
 * 	}
 * );
 * 
 * PickerLocation.Show();     // Shows the picker view (you call this)
 * PickerLocation.Hide();		// Hides the picker view (called automatically from buttons inside the view)
 * 
 */

var Controls = {};

Controls.CreatePickerView = function(wn, data, logEnabled, done) {
	/// <summary>Creates a slideup-ing View that holds a picker</summary>
	/// <param name="wn" type="Titanium.UI.Window">
	///      A reference to the Window to add this PickerView to
	/// </param>
	/// <param name="data" type="array of Titanium.UI.PickerRow">
	///      an array of data rows to add to the picker
	/// </param>
	/// <param name="logEnabled" type="boolean">
	///      Enabled logging inside this function
	/// </param>
	/// <param name="done" type="Function">
	///      The event to run when the user picks "done", function will be passed the Titanium.UI.PickerRow that they chose
	/// </param>
	/// <returns type="Titanium.UI.View" />
	var ThisControl = {
		"LogEnabled"		: logEnabled, 
		"Log"					: function(txt) {
			if (ThisControl.LogEnabled) { Titanium.API.info(txt); }
		}
	};	
	ThisControl.Log("Inside 'Controls.CreatePickerView' - Start");

	// The container view, which will be hidden along the bottom 
	ThisControl.View = Titanium.UI.createView({
		height					: 251,
		bottom					: -251
	});
	// Show the view holding the picker 
	ThisControl.ShowAnimation =  Titanium.UI.createAnimation({bottom:0});
	ThisControl.Show = function() {
		ThisControl.View.animate(ThisControl.ShowAnimation);
	};
	// Hide the view holding the picker 
	ThisControl.HideAnimation =  Titanium.UI.createAnimation({bottom:-251});
	ThisControl.Hide = function() {
		ThisControl.View.animate(ThisControl.HideAnimation);
	};
	ThisControl.Cancel =  Titanium.UI.createButton({
		title						: 'Cancel',
		style						: Titanium.UI.iPhone.SystemButtonStyle.BORDERED
	});
	ThisControl.Done =  Titanium.UI.createButton({
		title						: 'Done',
		style						: Titanium.UI.iPhone.SystemButtonStyle.DONE
	});
	ThisControl.Spacer =  Titanium.UI.createButton({
		systemButton		: Titanium.UI.iPhone.SystemButton.FLEXIBLE_SPACE
	});
	ThisControl.Toolbar =  Titanium.UI.createToolbar({
		top						: 0,
		items					: [ ThisControl.Cancel, ThisControl.Spacer, ThisControl.Done ]
	});
	ThisControl.Picker = Titanium.UI.createPicker({
			top					: 43
	});
	ThisControl.Picker.selectionIndicator = true;
	ThisControl.Done.addEventListener('click', function() {
		ThisControl.Log("Inside 'Controls.CreatePickerView' - Clicked 'Done'");
		ThisControl.Hide();
		done(ThisControl.Picker.getSelectedRow(0));
	});
	ThisControl.Cancel.addEventListener('click', function() {
		ThisControl.Log("Inside 'Controls.CreatePickerView' - Clicked 'Cancel'");
		ThisControl.Hide();
	});
	ThisControl.Picker.add(data);
	ThisControl.View.add(ThisControl.Toolbar);
	ThisControl.View.add(ThisControl.Picker);
	wn.add(ThisControl.View);

	ThisControl.Log("Inside 'Controls.CreatePickerView' - End");
	return ThisControl;
};

I'm not sure... sorry....

the code was written for many versions of Titanium ago.... something has obviously changed